NSCollectionView move sections Crash

Originator:stefan.gugarel
Number:rdar://28337446 Date Originated:16.09.2016
Status:Open Resolved:
Product:macOS SDK Product Version:10.12 Sierra
Classification:Crash Reproducible:Yes
 
Summary:
When you move 1 section to another section NSCollectionView crashes on animation (for example 0 to 1)

Steps to Reproduce:
1. Run sample
2. Press Move Section 0 down
3. Crash on animation

Expected Results:
Animation without crash 

Actual Results:
Crash

Version:
Xcode 8.0 (8A218a), OSX Sierra 10.12

Notes:


Configuration:
This sample works on 10.11 (El Capitan)
It crashes on 10.12 (Sierra)

Attachments:
'CollectionViewMoveBug.zip' was successfully uploaded.

Comments


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at bugreport.apple.com before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!